Crafting recipes that take vanilla and modded to make and output modded Items

I am just trying to make a silly mod of me and my friends as my first mod, can someone please help my incompetent self to why this recipe won't work?

{ "type": "minecraft:crafting_shaped", "pattern": [ "#@" ], "key": { "#": { "item": "minecraft:paper" }, "@": { "item": "breaking_blocks:drug" } }, "result": { "item": "breaking_blocks:blunt", "count": 3 } }